DiBoss LT-32HLFH Manuel de service

SERVICE MANUAL COLOR TFT-LCD TV SERVICE MANUAL MODEL : LT-32HLFH CAUTION !! BEFORE SERVICING THE TFT-LCD

14. PICTURE( )Recalls your preferred picture setting15. SOUND( )Recalls your preferred sound setting16. ARC( )You can watch TV in various pic

SERVICE MANUAL LOCATION OF CONTROL 1-3. Controller of Panel < SIDE VIEW> 󰚟 󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟󰚟 1.ON/OFF: Switches

SERVICE MANUAL TROUBLE SHOOTING Check P803 (8~12) : 24V?P804 (6~10) : 24V Replace LCD Panel.(If possible, replace inverter module.)

SERVICE MANUAL TROUBLE SHOOTING IC601 (4,7,12,15) = 24V? YCheck 24V Line N IC601 (25-Mute) < 0.7V? (L:Mute/ H:On) YZD601 (C) <

SERVICE MANUAL DEASSEMBLY PROCEDURE 1. Disassembly procedure 1).Back cover Remove 4 screwsRemove 16cre

SERVICE MANUAL DEASSEMBLY PROCEDURE 2).Metal plate & Rear chassis Remove 5 screws Removal of re

SERVICE MANUAL DEASSEMBLY PROCEDURE 3).Metal plate & Rear chassis Remove Main PCB 10 screwsRemova

SERVICE MANUAL DEASSEMBLY PROCEDURE 4).LCD Panel chassis 󰚟 Remove 22 screws, then take LCD-BRKT Remov

SERVICE MANUAL DEASSEMBLY PROCEDURE 5).LCD Module Remove 8 screws, then take LCD-BRKT Front mask remains after removing LCD Module

NO PART NO DESCRIP TION MATERKAL COLOR FINISH Q'TY1 - DECO FRONT PMMA BLACK 12 610-006A SPEAKER 10W,10Ω -23 400-021C FRONT CO

SERVICE MANUAL CONTENTS Contents ------------------------------------------------------------------------- 2 Safety precautions -------------------

SERVICE MANUAL WIRE DRESSING 1. Wire Dressing Note: Using acetate Using Copper (Conducted tape) Using Ferrite Cpre

SERVICE MANUAL ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 1.SVC mode data Adjustment NOTE!! When the EEPROM has been replaced, the SVC da

SERVICE MANUAL ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 2. White Blance Checking 1. Panel : SSLTA320W2-L03-10K 2. MODEL : L 4. PC Patter

SERVICE MANUAL INSPECTION INSTRUCTION 1. Supplied Accessories Note: Make Sure the following accessories are provided with Product.

SERVICE MANUAL <Picture 1>Staping <Picture 2>Taping TOP of SET box with OPP TAPE 2 1 3 1 POINT

12675MATERIAL DATA2005. 10. 26THIS ENGRD. H. KIMTREATMENT GHKMODEL APPD SCALE SHEETLT32H - 1 / 1SET Packing Exploded DrawgMA05-006DRAWING NO.TITLE34NO

SERVICE MANUAL PCB LAYOUT 1. CONTROL PCB 2. Tuner PCB

SERVICE MANUAL SAFETY PRECAUTIONS Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet. Do not use a line Is

SERVICE MANUAL REPLACEMENT PART LIST 1. Parts List (Assemble process) LEVEL PART NO PART NAME DESCRIPTION Q,TY1300-003R 40 ACCESSORY BOX BOX,

SERVICE MANUAL REPLACEMENT PART LIST 2. Parts List (Assemble process) LEVEL PART NO PART NAME DESCRIPTION Q,TY1510-320A NO BRAND,(PR),symbol REMO

HD READ_SCART_32(5V)GRLT51AM001B GR, SCART MANUALLAVEL P/N VENDOR P/N Description Q'ty Circuit No.1 0JASCART001D JACK, SCART SCART/AV-6P 2 J401,J

GRLT51AA001A GR,HD-READY COMMON AUTOLAVEL P/N VENDOR P/N Description Q'ty Circuit No.2 0CESS2R2HMTR Capacitor, 2.2UF 50V2.2U5 C178,C179,C187,C615

GRLT51AS001A GR, HD-READY COMMON SMDLAVEL P/N VENDOR P/N Description Q'ty Circuit No.3 0ICVI4925DTS DUAL P-CHANNEL 30V MOSFETSI49252 IC805,IC8213

GRLT51AS001A GR, HD-READY COMMON SMDLAVEL P/N VENDOR P/N Description Q'ty Circuit No.3 0RHSS392DJTS Resistor, chip 3.9K3.9K2 R124,R1253 0RHSS393D

GRLT41AM001H GR, LL' MANUALVCTI 15/17 동일ILAVEL P/N VENDOR P/N Description Q'ty Circuit No.1TPMU40R9MTD MKTGA40M9AAHP00A0340.9M1 T101GRLT41DS

SERVICE MANUAL BLOCK DIAGRAM 1. Block Diagram 32 Block Diagram SPEAKER HEADPHONEIC101 VCTI u-Com TEXT/Caption Video Processor Sound Processor IF

SERVICE MANUAL SERVICING PRECAUTIONS CAUTION!! Before servicing receivers covered by this service manual, read and follow the SAFETY PRECAUTIONS

SERVICE MANUAL CIRCUIT DESCRIPTIONS General Description for 26.0” color TFT LCD TV. The TFT LCD TV described in the followings is based on a Mul

SERVICE MANUAL CIRCUIT DESCRIPTIONS 1.SCALER SECTION. Device : MST5151A Features: LCD TV controller with PC & multimedia display functions

SERVICE MANUAL 1) Description The MST5151A is a high performance and fully integrated graphics processing IC solution for multi-function LCD monito

PIN DIAGRAM (MST5151A) Pin 112345791113141718212325272830323436394143681012151619202224262931333537384042444546474850515249535455565759616365666970737

PIN DESCRIPTION MCU Interface Pin Name Pin Type Function Pin HWRESET Schmitt Trigger Input w/ 5V-tolerant Hardware Reset, active high 67 DBUS[3:

Pin Name Pin Type Function Pin GIN1M Analog Input Reference Ground for Analog Green Input from Channel 1 24 RIN1P Analog Input Analog Red Input

LVDS Interface Pin Name Pin Type Function Pin LVA0M Output A-Link Negative LVDS Differential Data Output 171 LVA0P Output A-Link Positive LVDS

DRAM Interface Pin Name Pin Type Function Pin MVREF Input Reference Voltage for DDR SDRAM Interface 104 MCLKE Output DRAM Memory Clock Enable

Pin Name Pin Type Function Pin VDDM 3.3V Power (SDR SDRAM) / 2.5V Power (DDR SDRAM) DRAM Interface Power 86, 102, 113, 125, 139, 154 VDDP 3.3V

MECHANICAL DIMENSIONS θ2EE1bLGage Plane0.25mmeθθ1Seating PlaneR1R2DD1L1A1A2AcSMillimeter Inch Symbol Min. Nom. Max. Min. Nom. Max. A - - 4.10 - -

SERVICE MANUAL SPECIFICATIONS Note: Specifications and others are subject to change without notice for improvement. 1.Scope. This document is the

General DescriptionIntroductionThe VCT 49xxI is an IC family of high-quality single-chip TV processors. Modular design and deep-submi-cron technology

ChipArchitectureFig.:BlockdiagramoftheVCT49xxIXTAL1IFFrontendSlicerVideoBackendIFProcessorSoundDemodulatorAudioProcessorDisplayGeneratorBusArbiter20kB

PinConnectionsandShortDescriptionsNC = not connectedLV = if not used, leave vacantOBL = obligatory; connect as described in circuit diagramIN = Input

28 11 HFLB IN HOUT Horizontal Flyback Input29 12 HOUT OUT LV Horizontal Drive Output30 13 VPROT IN GND Vertical Protection Input37 PWMV OUT LV PWM Ver

59 69 VIN10 IN GND Analog Video 10 Input60 70 VIN11 IN GND Analog Video 11 Input61 98 P23 IN/OUT LV Port 2, Bit 3 Input/Output62 99 P22 IN/OUT LV Port

85 124 SPEAKERL OUT LV Analog Loudspeaker Output, Left86 125 VREFAU OBL Reference Voltage, Audio87 126 VSUP8.0AU SUPPLY OBL Supply Voltage Analog Audi

96 ADB10 OUT LV Address Bus 10 Output15 ADB9 OUT LV Address Bus 9 Output16 ADB8 OUT LV Address Bus 8 Output27 ADB7 OUT LV Address Bus 7 Output28 ADB6

PinDescriptionsSupplyPinsVSUP1.8DIG− Supply Voltage 1.8 VThis pin is main and standby supply for the digital corelogic of controller, video, display a

AOUT1 R/L – Audio 1 Outputs (Fig. 4–11)Output of the analog audio 1 signal. Connections tothese pins are intended to be AC coupled.AOUT2 R/L – Audio 2

GeneralDescriptionSENSE − Measurement ADC Input (Fig. 4–27)This is the input of the analog to digital converter forthe picture and tube measurement. T

SERVICE MANUAL SPECIFICATIONS 9.Receiving RF TV system NO Model SystemLT-32HLFH / /1 PAL-B○/ /2 PAL-G○/ /3 PAL-I, I /I○/ /4 PAL-D○/ /5 PAL-K○/ /6

GeneralDescriptionMicronas Dec. 6, 2002; 6251-573-1-1AI 1-23Fig.PMQFP144-2packageVCT 49xyIVIN9VIN8VIN10VIN7VIN6VIN3VIN2VIN1VOUT1VOUT2VOUT3VSUP1.8FEGND

Subject:Data Sheet Concerned:Supplement:Edition:Advance Information SupplementChanges to the previous revision are indicated by change bars. Please no

39 Peaking Filter x x Problem solved in D240 Bandwidth of Antialias Filterx x Problem solved in D241 SVM Overflow x x Problem solved in D242 ADC Initi

63 ODC-Modes: FHPULLIN/ SHPULLIN! ! ! ! ! ! ! ! = Workaround availableno redesign planned64 Safety Pinx x x x x Problem solved in F165 13.5MHz Backend

7. VCT49xyI-C7The VCT 49xyI-C7 is pin-compatible to VCT 49xyI-C6 and VCT 49xyI-C4. Problem 45 has been solved. Problem 43 is partly solved: Improved i

48 DRX AGC Hangup If VAGC_REDUC>0 and positive signal jumps above top level, AGC hangup may occur and CVBS out-put level is reduced.firmware redesi

2. VCT49xyI-F1 The VCT 49xyI-F1 is targeted to solve field and functional problems of the earlier VCT-I versions. For that purpose some new registers

2.1. Register Changes on VCT 49xyI-F12.1.1. DRX PartThe major improvement of the VCT 49xyI-F1 DRX-performance is based on the speed up of the Tuner-AG

All controller software workarounds used at former versions which write the KIs will no longer be needed and should be removed (see also next section)

2.1.1.4. Recommended Workarounds for VCT 49xyI-F1Although the field problems have been fixed successfully, there are recommendations for specific inp

SERVICE MANUAL 󰚟10. PC Mode Scan Frequency & Timing 1) Scan Freq: H: 31～56 kHz / V: 56～75㎐ 2) Preset Timing Chart Note!! : If the s

2.1.2. VSP Part Table 2–5: New VSP RegistersName Sub Dir Sync Reset Range FunctionCDLPCDEL[2:0] h07[2:0] RW VS_CD 0 -8..7 Window Shift For Fine Err

COMBVPM h1F[4] RW VS_COMB00,1 Vertical Peaking Mode0: 2H PAL, 1H NTSC (old mode)1: 1H PAL, 2H NTSC (new mode)MACROVISIONMVRESULT[1:0] h26[1:0] R VS_CD

2.1.3. DPS Part 2.1.4. XDFP Part Table 2–9: New DPS RegistersName Sub Dir Sync Reset Range FunctionDEFLFBOUTEN hD3[0] RW VS_DEFL 0 0,1 FBOUT Enable

2.1.5. TVT Part Table 2–12: Undocumented XDFP Registers (already available in Dx versions)Name Sub Dir Sync Reset Range FunctionHorizontal DeflectionP

SERVICE MANUAL 11. TFT – LCD Panel Character Description LTA320W2-L03 is a color active matrix TFT(Thin Film Transistor) liquid crystal display(LC

All the functions can be controlled with the remote controller. Some functions canalso be adjusted with the buttons on the side panel of the set.Remot